B n <annotation-xml encoding="MathML-Content" id="p1.1.m1.1b"> <apply id="p1.1.m1.1.1.1.cmml" xref="p1.1.m1.1.1.4"> <csymbol cd="dlmf" id="p1.1.m1.1.1.1.1.cmml" xref="p1.1.m1.1.1.2">Bernoulli-number-B</csymbol> <ci id="p1.1.m1.1.1.3.1.cmml" xref="p1.1.m1.1.1.3.1">𝑛</ci> </apply> </annotation-xml> {\displaystyle{\displaystyle B_{\NVar{n}}}}
! <annotation-xml encoding="MathML-Content" id="p1.1.m1.1b"> <factorial id="p1.1.m1.1.1.cmml" xref="p1.1.m1.1.1"/> </annotation-xml> {\displaystyle{\displaystyle!}}
k <annotation-xml encoding="MathML-Content" id="p1.1.m1.1b"> <ci id="p1.1.m1.1.1.cmml" xref="p1.1.m1.1.1">𝑘</ci> </annotation-xml> {\displaystyle{\displaystyle k}}
n <annotation-xml encoding="MathML-Content" id="p1.1.m1.1b"> <ci id="p1.1.m1.1.1.cmml" xref="p1.1.m1.1.1">𝑛</ci> </annotation-xml> {\displaystyle{\displaystyle n}}